Joint optimization of power allocation and relay position for regenerative relaying in the presence of co-channel interference

Author

Ikki, Salama S. ; Aïssa, Sonia

Author_Institution

Inst. Nat. de la Rech. Sci. (INRS), Univ. of Quebec, Montreal, QC, Canada

fYear

2011

fDate

11-14 Sept. 2011

Firstpage

1703

Lastpage

1707

Abstract

We consider power allocation and relay positioning with the objective to minimize system error probability in a dual-hop regenerative relaying system operating under co-channel interference. First, assuming fixed relay location, adaptive power allocation at the source and the relay nodes under joint power constraint is presented. Then considering fixed power allocation scheme, the optimal relay position is obtained. Results show that optimum power allocation, optimum relay location and joint optimization of the power allocation and relay positioning significantly improve the system performance in terms of error probability compared to uniform power allocation and mid-point distance location for the relay node.

Keywords

cochannel interference; optimisation; probability; adaptive power allocation; cochannel interference; error probability; joint optimization; mid-point distance location; optimal relay position; regenerative relaying; Error probability; Fading; Interchannel interference; Joints; Optimization; Relays; Resource management; Dual hop; amplify-and-forward; co-channel interference; error probability; optimization; power allocation; relay location;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal Indoor and Mobile Radio Communications (PIMRC), 2011 IEEE 22nd International Symposium on

Conference_Location

Toronto, ON

ISSN

pending

Print_ISBN

978-1-4577-1346-0

Electronic_ISBN

pending

Type

conf

DOI

10.1109/PIMRC.2011.6139797

Filename

6139797